Cita APA (7a ed.)

Crespi, I. (1988). Pre-election polling: Sources of accuracy and error. Russell Sage Foundation.

Cita Chicago Style (17a ed.)

Crespi, Irving. Pre-election Polling: Sources of Accuracy and Error. New York: Russell Sage Foundation, 1988.

Cita MLA (8a ed.)

Crespi, Irving. Pre-election Polling: Sources of Accuracy and Error. Russell Sage Foundation, 1988.